摘要
目的 :研究淋巴因子IL 2联合银耳多糖 (TremellaPolysaccharideTP)共同激活的小鼠腺细胞对体外肿瘤细胞的杀伤作用及小鼠移植性肝癌的治疗作用。方法 :将IL 2激活的小鼠脾细胞 (即LAK细胞 )和IL 2与银耳多糖协同激活的小鼠脾细胞 (即TP LAK细胞 )分别作用于体外培养的3H TdR标记的肿瘤细胞P815、H2 2和B16 ,2小时后用γ 闪烁计数仪进行检测 ,并记算杀伤程度。将上述激活的小鼠脾细胞在小鼠荷肝癌局部皮下注射 ,隔日 1次 ,共 5次。检测肿瘤重量、体积、组织学改变和主要脏器的形态学改变。结果 :IL 2与银耳多糖激活的小鼠脾细胞对体外培养的肿瘤细胞有明显的杀伤作用 ,两种效应细胞对B16杀伤作用最强 ,H2 2次之 ,P815最弱 ,TP LAK细胞的作用较之LAK细胞更强 (P <0 0 5 )。治疗组肝肿瘤重量、体积均低于对照组。组织学上肿瘤坏死程度重且范围广 ,淋巴细胞、单核细胞浸润明显 ,纤维组织增生明显。银耳多糖协同IL 2实验组织较单纯的IL 2实验组表现的更为明显。除脾脏外 ,其它主要脏器无明显形态学变化。结论 :IL 2激活脾LAK细胞是有效的抗肝癌细胞 ,IL 2与银耳多糖在活化脾细胞提高抗肿瘤方面具有协同作用 。
Objective:To study the cytotoxicity to tumor cells P815,H22 and B16 in vitro and the treatment effect of mice spleenocytes activated by lymphokine IL-2 and Tremella Polysaccharide,and their effects on main viscerals.Methods:The cytotoxicity of spleenocytes activated by lymphokine IL-2 or IL-2 and Tremella Polysaccharide to P815,H22 and B16 was detected by γ-scintillation counter after 2 hours.Subcutaneous injection of the above-mentioned spleenocytes to the local area of jepatocarcinoma of mice,one injection every two days,5 times totally.To examine tumor weight,size,histological changes and morphological changes in main viscerals.Results:The significantly cytotoxicity to tumor cells of spleenocytes activated by IL-2 and Tremella Polysaccharide was observed.To B16,the cytotoxicity of activated spleenocytes was the strongest.To H22,the cytotoxicity of activated spleenocytes was stronger and to P815,the cytotoxicity was the weakest,the cytotoxicity of TP-LAK cells was significantly stronger than that of LAK cells( P<0 05 ).Tumor weight and size in treatment group were obviously lower than that in controlled group.Histologiclly,necrosis of tumor was more serious and extensive.There were prominent infiltration of lyphocytes and monocytes.The hyperplasia of fibrous tissue was also outstanding.The presentation on Tremella Polysaccharide and IL-2 experiment group was more significant than that in simple IL-2 group.Except spleen,there was no significant morphological changes on main visceral organs.Conclusion:IL-2 activated LAK cells are effective anti-hepatocarcinoma cells.IL-2 and Tremella Polysaccharide have synergistic anti-tumor effect and they have no significant effect on main visceral organs.
出处
《中国免疫学杂志》
CAS
CSCD
北大核心
2004年第5期356-359,共4页
Chinese Journal of Immunology
关键词
银耳多糖
IL-2
肝癌
免疫治疗
脾细胞
Tremella Polysaccharide
IL-2
Hepatocarcinoma
Immunotherapy spleenocyte
Spleenocytes
